?How can routers be used to determine the path of an e-mail?

What will be an ideal response?

?Network administrators maintain logs of the inbound and outbound traffic routers handle. Routers have rules to allow or deny traffic based on source or destination IP address. In most cases, a router is set up to track all traffic flowing through its ports. Using these logs, you can determine the path a transmitted e-mail has taken. The network administrator who manages routers can supply the log files you need. Review the router logs to find the victim's (recipient's) e-mail, and look for the unique ID number.